(0 18 8)(1 20 12)(2 6 4)(3 19 16)(5 10 7)(9 13 11)(14 17 15)
ALLOWS (11/8)-SEQUENCE
1: (0 8 18)

(0 8 18)(1 20 12)(2 6 4)(3 19 16)(5 10 7)(9 13 11)(14 17 15)
2: (1 20 12)

(0 8 18)(1)(2 6 4)(3 19 16)(5 10 7)(9 13 11)(12)(14 17 15)(20)
3: (0 8 18)

(0)(1)(2 6 4)(3 19 16)(5 10 7)(8)(9 13 11)(12)(14 17 15)(18)(20)
4: (3 19 16)

(0)(1)(2 6 4)(3)(5 10 7)(8)(9 13 11)(12)(14 17 15)(16)(18)(19)(20)